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JOHN B. WICKERSHAM, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 82,667, dated September 29, 1868.

IMPROVEMENT IN LUBRIGATORS.

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Be it known that I, JOHN B. WICKERSHAM, of Philadelphia, in the State of Pennsylvania, have invented and madeA a certain new and useful Improvement in Oil-Cups for-Lubricating Machinery andI do' hereby declare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part ofthis specification, wherein- Figure 1 is a vertical section of my improved oil-cup, and

Figure 2 is an inverted plan of the capfor the tube of the .oiler.

Similar marks of reference denote the same parts.

In Letters Patent granted to me for an improvement in lubricators, dated October 22, 1867, a vmetal tube and'socket are employed witha glass oil-receptacle.

In almost all of the lubricaors heretofore made,' the meta'llic portions are of brass or copper. I have discovered, practically, that with almost all kinds of oil, the brass or copper renders the same of a greenish color, and frequently of a gummy consistence, that does not properly lubricate, and is liable to interfere with the capillary'action of the feeding-wire and fibrous-covering. I i I.

The nature of my present invention consists in a lubricator formed with/a glass reservoir, and a metallic tube and cap, of white metal or pewter, that is not affected by the oil, hence said'oil is not discolored or rendered gummy, but retainsits purity and limpid condition, andthe capillary feeder is not obstructed by the impurities and coloring-matter of the oil, resulting from the action thereof upon brass or copper tubes or mountings for the glass receptacle. v

In the drawing, a. is the glass receptacle or reservoir, formed with an opening atits upper and lower portions, on the outsides ofwhich are screw-threads.' I

vl5 is the metal cap for the upper part of the reservoir, by the removal of which lthe reservoir may be lled.

This metal cap bserews upon the outside of a collar, b', that is screwed upon the glass neck and rendered tight by suitable cement, and awasher introduced between the cap, b, and collar bf, renders .the parts tight, for am object hereafter mentioned. v

c is a cap of metal, into whiclrthe lower neck ofthe glass reservoir a screws, and the parts are rendered perfectly tight by a leather washer, eZ, and by packing cement between the metal of the cap, e, and .the glass,`d. The tube e is screwed into the lower part of the cap, c, and extends up into the oil-space in the reservoir a, to near the cap, b, and into this theV capillary wire or feeder is introduced to draw over the oil and lubricate the mechanism to which it is applied.- f i I make use of-a sleeve,f, set over the upper end ot' thetube e, and I provide a swell, o, upon one sid'e, that allows the capillary wire. or feeder to pass up and over into the tube e freely, but Aprevents the oil passing ov-er into said tube e, in consequence of any agitation of the lubrioator, as in cranks and connecting-rods of engines and loose pulleys.

These metallic parts are all made of white metal or alloy, resembling pewter, in order that the oil may not be injured or discolored, as in brass or copper vessels or lubricators.

' Ihe capillary feeder z'is made of t'wb or more wires within a fibrous tub'e, formed by .braiding cotton or other fibre around.l them, and there is a space left between such wires that forms a, tube, that acts as asiphon,

(see iig. 3,) or'said tube may be made of a strip of metal, bentup into a tubular form, but with vthe seam open,-

so as not to make a tight pipe, as shown in iig. 4.

In order to set this capillary feeder in eicient operation, it is important 'that it be immersed in the oil, so

.as to drive out any air. To effect this the oil-cup should be 'filled up as high as the top'oi` kthe said capillary feeder, and to prevent oil Herring rapidly down the tube e, I apply a cock at t.

When this cock is closed, the oil will be shut o', and thus prevent waste when not in use, and the Siphonthe chamber k and the'tube e will be'lled almost to' the level of the oil in the receptacle a.

action continuing, When the cock 71, is opened, the body of oil, as it descends in the tube e and chamber le, will cause the aforesaid capillary feeder to commence its regular supply, unless the oil is so nearly exhausted as to require replenisliing. When the oilhas` run o ut of the chamber 7c, the supply will be, drop by drop, from the capillary feeder. In cases where my said feeder is applied to a. revolving pulley or wheel, the screw-cap 6 prevents the oil wasting out either by inversion of the cup or by centrifugal force, and the cap or sleevef and capillary feeder insure a regular supply to the axle orjournal.

What I claim, and desire to secure by Letters Patent, is-

1. The sleevef, formed with a swell upon one side for the introduction of a feeder, in combination with the tube e and reservoir a, for the* purposes and as specified.

2. A lubricator formed with the tube e of white metal, for the purposes and as specified. 3. The combination of the glass reservoir a and screw-neck atits lower` end, with the cup c and washer d, rendered permanently tight by cement, as set forth. I

4. A capillary feeder formed by metal wires or rods, or a tubular strip of metal enclosed in a'iibrous cov- 4 ering, so as to form asiphon, a's and for the purposes set forth. I K

5. The cook h and chamber k, in combination with a capillary feeder and oil-cup, substantially as set forth. VIn witness whereof, I have hereunto set my signature, this fifteenth day of June, A. D. 1868.

' J. B. WICKERSHAM.

Witnesses:

S. A: SPorFoRD, LoUIS WAGNER. 

